Automated extraction of pressure ridges from SAR images of sea ice - Comparison with surface truth

• Main Authors: Vesecky, J. F., Smith, M. P., Samadani, R., Daida, J. M., Comiso, J. C.
• Format: Other/Unknown Material
• Language: unknown
• Published: 1991
• Subjects: 48; Greenland; Greenland Sea; Sea ice
• Online Access: http://ntrs.nasa.gov/search.jsp?R=19920052317

The authors estimate the characteristics of ridges and leads in sea ice from SAR (synthetic aperture radar) images. Such estimates are based on the hypothesis that bright filamentary features in SAR sea ice images correspond with pressure ridges. A data set collected in the Greenland Sea in 1987 allows this hypothesis to be evaluated for X-band SAR images. A preliminary analysis of data collected from SAR images and ice elevation (from a laser altimeter) is presented. It is found that SAR image brightness and ice elevation are clearly related. However, the correlation, using the data and techniques applied, is not strong.